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In this paper, a new type depolarized fiber optic gyroscope is described. Sensing coil is constructed by single-mode optical fiber. A superluminescent diode source is used to reduce both the coherent scattering effect and Kerr effect. Two depolarizers with 1.0% degree of polarization were used to reduce the output bias drift and improve the scale factor. Long-term bais stability better than 2.0° /hr is obtained during ten hours observed time.
Fengping Yan
"A new type of IFOG with depolarizers", Proc. SPIE 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 2778FF (1 September 1996); https://doi.org/10.1117/12.2316244
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Fengping Yan, "A new type of IFOG with depolarizers," Proc. SPIE 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 2778FF (1 September 1996); https://doi.org/10.1117/12.2316244